1. add@/sys/bus/platform/drivers nt-keypad
struct bus_type platform_bus_type
bus_register(&platform_bus_type);
struct device_driver aesop_device_driver
name
"platform"
.dev_attrs
platform_dev_attrs
.match
platform_match
.uevent
platform_uevent .p
subsys
list
name
"platform"
kobj
entry
parent
kset
ktype
container_of(n, struct klist_node, n_node);
n - (int)&((struct klist_node*)0)-> n_node
sysfs_dirent
kref 3
state_initialized 1
state_in_sysfs 1
state_add_uevent_sent
state_remove_uevent_sent
uevent_ops
.sysfs_ops
&bus_sysfs_ops
drivers_kset
devices_kset
klist_devices_get
klist_devices_put
klist_devices
klist_drivers
drivers_autoprobe 1
bus
subsys
list
subsys
list
name
"driver"
name
"device"
kobj
entry
entry
kobj
parent
parent
kset
kset
ktype
ktype
sysfs_dirent
sysfs_dirent
kref 3
kref 2
state_initialized
state_initialized 1 1
state_in_sysfs
name 1
state_in_sysfs 1
"nt-keypad"
state_add_uevent_sent
bus
state_add_uevent_sent 1
state_remove_uevent_sent
state_remove_uevent_sent
probe
aesop_keypad_probe
uevent_ops
remove
uevent_ops
aesop_keypad_remove p
struct driver_private
struct driver_private
name
kobj
name
"nt-keypad"
"nt-keypad"
kobj
name
entry
"nt-keypad"
entry
parent
parent
kset
kset
kobj_type
.sysfs_ops
.sysfs_ops
&driver_sysfs_ops
&dev_sysfs_ops
kobj_type
sysfs_dirent
sysfs_dirent
kref 1
state_initialized
kref 2 1
state_initialized
state_in_sysfs 1 1
state_in_sysfs
state_add_uevent_sent 1
state_add_uevent_sent
state_remove_uevent_sent
klist_children_get
klist_children_put
state_remove_uevent_sent
klist_devices
klist_children
n_klist
knode_bus
n_node
n_klist
knode_parent
n_node
n_ref 1
driver
head
data
end
n_ref
tail
n_klist
nt-keypad
knode_driver
n_node
n_ref
DEVPATH=/sys/bus/platform/drivers
ACTION="add"
SUBSYSTEM="nt-keypad"
n_klist
knode_bus
n_node
n_ref
parent
type
bus
driver

2. vi /usr/src/linux/arch/arm/mach-s5pc100/mach-smdkc100.c
static struct platform_device *smdkc100_devices[] __initdata = {
...
&s3c_device_ts,
&s3c_device_adc, }
platform_add_devices(smdkc100_devices, ARRAY_SIZE(smdkc100_devices));
platform_device_register(struct platform_device *pdev);
__mach_desc_SMDKC100